1,4-Dioxane
CAS 123-91-1
EC 204-661-8
Formula C4H8O2
MW 88.11 g/mol
Solvents Personal Care & CosmeticsFood & Nutrition Solvent & CarrierFlavoring & Acidulant
Description
1,4-Dioxane (CAS 123-91-1, EC 204-661-8, formula C4H8O2) is a cyclic diether solvent also referred to as DIOX, Dioxan, or p-Dioxane. It carries no assigned E-code. It is classified under HS code 29329900 and supplied as a colourless liquid.
In personal care formulations, 1,4-Dioxane functions as a carrier solvent, improving the solubility and distribution of active ingredients across a product matrix. In food and flavour applications, it serves as a solvent medium for fragrance and flavouring compounds, facilitating controlled extraction and concentration of target components.
This product is supplied subject to REACH registration requirements applicable within the EU. Procurement teams should verify current regulatory status, as 1,4-Dioxane is subject to ongoing scrutiny regarding residual limits in cosmetic and food-contact applications. Buyers should confirm available grades, purity specifications, and packaging formats directly with our sales team.
In personal care formulations, 1,4-Dioxane functions as a carrier solvent, improving the solubility and distribution of active ingredients across a product matrix. In food and flavour applications, it serves as a solvent medium for fragrance and flavouring compounds, facilitating controlled extraction and concentration of target components.
This product is supplied subject to REACH registration requirements applicable within the EU. Procurement teams should verify current regulatory status, as 1,4-Dioxane is subject to ongoing scrutiny regarding residual limits in cosmetic and food-contact applications. Buyers should confirm available grades, purity specifications, and packaging formats directly with our sales team.
Physical Properties
| Melting Point | 11.80 °C |
| Boiling Point | 101.1 °C @ Press: 760 Torr |
| Density | 1.0337 g/cm³ @ Temp: 20 °C |
| Flash Point | 54 °F |
| Appearance | colourless liquid |
| Color | APHA: ≤20 |
| Odor | Mild ether-like odor detectable at 0.8 to 172 ppm (mean = 12 ppm) |
| Form | Solution |
| Water Solubility | SOLUBLE |
| Vapor Pressure | 27 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.422(lit.) |
| pH | 6-8 (500g/l, H2O, 20℃) |
| Log P | -0.42 at 20℃ |
Safety & Handling (Learn More)
Danger GHS02 GHS07 GHS08 GHS06
H
H225H313H315H319H331H332H335H336H350H351H370H372H373
P
P203P210P233P240P241P242P243P260P261P264P270P271P280P316P317P318P319P321P405P501P264+P265P302+P317P302+P352P304+P340P308+P316P332+P317P337+P317P362+P364P370+P378P403+P233P403+P235P303+P361+P353P305+P351+P338
Trade & Regulatory
| HS Code | 29329900 |
| UN Number | 1993 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 3 |
Other Names
DioxanDioxanep-Dioxane6-crown-2DIOX1,4-DIOXAN
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